CN102271337A - Method and device for processing intercell interference coordination information - Google Patents

Abstract

The invention discloses a method and a device for processing intercell interference coordination information. The method comprises the following steps: determining the amount of resource blocks occupied by a cell edge user within a preset time interval in a cell; setting the value of a bit with the equal amount in the interference coordination information of the cell into 1; according to the range of the dedicated resource of the cell edge user of the cell, arranging the bits of which the bit value is 1 on a bandwidth according to a preset expansion sequence; and sending the interference coordination information to the adjacent cell by the cell. According to the method and the device, the accuracy for substation resource distribution is improved.

Description

Inter-Cell Interference Coordination information processing method and device

Technical field

The present invention relates to the communications field, in particular to a kind of Inter-Cell Interference Coordination information processing method and device.

Background technology

Long Term Evolution (Long Term Evolution, abbreviate LTE as) down physical layer employing OFDM (Orthogonal Frequency Division Multiplexing, abbreviate OFDM as) technology, resource is carried out the division of two dimension from frequency and time.In the LTE system, all available bandwidth are used in each sub-district, thereby have improved the throughput of sub-district greatly.

Consider that from the networking aspect OFDM can guarantee that the signal between the internal user of sub-district is a quadrature, thereby can effectively avoid the interference of sub-district internal user.But, because the frequency range of neighbor cell is the same, the interference of minizone still can exist, especially for Cell Edge User (Cell Edge User, abbreviate CEU as), its signal own is just more weak, if the adjacent area edge customer also has been assigned to the frequency band the same with it, will cause serious presence of intercell interference to it.

At present, three kinds of presence of intercell interference processing methods commonly used are arranged: interference eliminated, interference randomization and interference coordination.Wherein, interference eliminated is by utilizing processing gain to disturb compacting at user side; Interference randomization is to disturb compacting by the randomize interference signal; Interference coordination (Inter-Cell Interference Coordination, abbreviate ICIC as) core be to distribute by a plurality of minizones reasonable resources, make the resource of edge customer of the neighbor cell quadrature of trying one's best, thereby reduce the interference of neighbor cell edge customer.Because interference coordination uses flexibly, realize simply and satisfactory for result, become the main flow of presence of intercell interference treatment technology.

ICIC is divided into static state (Static) ICIC, dynamic (Dynamic) ICIC and semi-static (Semi Static) ICIC, and wherein, it is too many for the restriction of resource that static interference is coordinated (Static ICIC), bigger to Effect on Performance such as choosings frequently; The signaling consumption of dynamic interference coordination is bigger, and the Signalling exchange time-delay is longer between the base station; Coordinating semi-static interference can overcome the shortcoming of static ICIC and dynamic I CIC to a certain extent.The key of coordinating semi-static interference is exactly to transmit minizone load information (Load Information) by X2 interface between the base station, being used to obtain the resource occupation information of adjacent area, and with this foundation of distributing as this local resource.

According to prior protocols, load information mainly comprises following information: cell information: the sub-district ID of cell-of-origin; Up high interference indication (High Interference Indication abbreviates HII as) information; Descending Relative Narrowband TX Power (Relative Narrowband TxPower abbreviates RNTP as) information; Up overload indication (Overload Indication abbreviates OI as) information.Wherein, the generation of RNTP information is by to allocated resource unit (Resource Element, abbreviate RE as) go up that the measurement of power produces, need UE to report according to the watt level of the own actual resource location that takies in this case, the calculating of RNTP information bit and the generation of RNTP information are carried out according to this value of reporting then in the base station.This production method depends on the accuracy of the RE of the unit transmitting power (Energy Per RE abbreviates EPRE as) that the physical layer measurement reports the MAC layer.And at present the transmitting power that reports of UE might be inaccurate, and the accuracy of the distribution of resource is brought influence.

Summary of the invention

Main purpose of the present invention is to provide a kind of Inter-Cell Interference Coordination information processing scheme, to address the above problem at least.

According to an aspect of the present invention, provide a kind of Inter-Cell Interference Coordination information processing method, having comprised: the quantity of determining the Resource Block that the Cell Edge User in the sub-district occupies at interval at the fixed time; The value of the bit that equates with described quantity in the interference coordination information of described sub-district is set to 1; According to the scope of the Cell Edge User dedicated resources of described sub-district, be that 1 bit is arranged on bandwidth according to predetermined expansion order with described bit value; Described sub-district sends described interference coordination information to described neighbor cell.

According to another aspect of the present invention, a kind of Inter-Cell Interference Coordination information processing device also is provided, be positioned at the MAC layer of base station, comprise: the quantity of the Resource Block that resource data statistical module, the Cell Edge User that is used for determining the sub-district occupy at interval at the fixed time; The interference coordination information-generation module; The value that is used for the bit that the interference coordination information of described sub-district equates with described quantity is set to 1; And, be that 1 bit is arranged on bandwidth according to predetermined expansion order with the value in the interference coordination information of described sub-district according to the scope of the Cell Edge User dedicated resources of the neighbor cell of described sub-district and described sub-district; The interference coordination information sending module is used for sending described interference coordination information to described neighbor cell.

By the present invention, adopt to determine the quantity of the Resource Block that the Cell Edge User in the sub-district occupies at interval at the fixed time; The value of the bit that equates with above-mentioned quantity in the interference coordination information of this sub-district is set to 1; According to the scope of the Cell Edge User dedicated resources of this sub-district, be that 1 bit is arranged on bandwidth according to predetermined expansion order with bit value; This sub-district sends interference coordination information to neighbor cell.Solved base station in the correlation technique and cause to bring the problem of influence to the accuracy of resource allocation, reduced the interference of minizone thereby improved the accuracy that base station resource distributes according to the generation RNTP information of terminal to report.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is the flow chart according to the Inter-Cell Interference Coordination information processing method of the embodiment of the invention;

Fig. 2 is the schematic diagram according to the RNTP bitmap propagation direction of different districts in the RNTP production process of the embodiment of the invention;

Fig. 3 is the structured flowchart according to the Inter-Cell Interference Coordination information processing device of the embodiment of the invention;

Fig. 4 is the structured flowchart according to the Inter-Cell Interference Coordination information processing device of the embodiment of the invention;

Fig. 5 is the flow chart according to the RNTP production process of the embodiment of the invention two;

Fig. 6 is the flow chart according to the RNTP receiving course of the embodiment of the invention two;

Fig. 7 is the structured flowchart according to the invention process two devices;

Fig. 8 is the schematic diagram according to the RNTP bitmap propagation direction of different districts in the RNTP production process of the embodiment of the invention five.

Embodiment

Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.

Embodiment one

A kind of Inter-Cell Interference Coordination information processing method is provided in the present embodiment, and Fig. 1 is that this flow process comprises the steps: according to the flow chart of the Inter-Cell Interference Coordination information processing method of the embodiment of the invention

Step S 102, determine the quantity of the Resource Block (Resource Block abbreviates RB as) that the Cell Edge User in the sub-district occupies at interval at the fixed time;

Step S104, the value with above-mentioned quantity equal bits in the interference coordination information of this sub-district is set to 1;

Step S 106, according to the scope of the Cell Edge User dedicated resources of this sub-district, are that 1 bit is arranged on bandwidth according to predetermined expansion order with the value in the interference coordination information of this sub-district;

Step S 108, and this sub-district sends interference coordination information to neighbor cell.

Pass through above-mentioned steps, the sub-district is according to medium access control (Media Access Control, abbreviating MAC as) quantity of the Resource Block of layer (for example generates interference coordination information, RNTP information, HII information), thus the problem that measurement reports the information of generating to bring according to the UE physical layer solved.

Preferably, in step S102, can in certain time length, add up the sum of this Cell Edge User at the Resource Block that occupies; Use described sum to calculate the quantity of the Resource Block that this Cell Edge User on average occupies at interval at the fixed time.Need to prove that " certain time length " among the step S 102 can determine according to the situation of reality, the purpose that adopts this duration is in order to calculate the quantity of the Resource Block that a period of time Cell Edge User at interval on average takies.For example, (can use the integral multiple of Transmission Time Interval at one section timing statistics, as 50 or 100TTI) in the sum of the RB that is occupied by Cell Edge User of statistics, then, calculating comprises what Transmission Time Intervals (Transmission TimeInterval to timing statistics, abbreviate TTI as), thus the mean value of the RB quantity that Cell Edge User occupies among each TTI obtained.

Preferably,, can at first judge, and then determine whether to send this interference coordination information at step S108.For example, the interference coordination information that obtains specifically can be compared successively with corresponding bit in the last interference coordination information that obtains; If the quantity of the bit that the value in two bit diagram is inequality surpasses threshold value, then send this interference coordination information to neighbor cell.

Preferably, this sub-district can also receive the interference coordination information from neighbor cell, then, carries out the distribution of resource according to the interference coordination information of this sub-district and the interference coordination information of neighbor cell.For example, interference coordination information that the neighbor cell that receives in the section sends (for example can be added up at the fixed time in this sub-district, the interference coordination information that the neighbor cell that receives in this scheduled time sends is sued for peace or weighted sum by bit), obtain described interference coordination information from described neighbor cell.What need specification is that " predetermined amount of time " in this section can be selected according to the situation of reality, for example, can select 10 TTI or 20 TTI.

Three sub-districts with same base station are that example describes below, and for same base station, the Cell Edge User dedicated resources of sub-district and two neighbor cells takies different frequency ranges; Wherein, the bit corresponding with first predetermined resource blocks is 1 in the interference coordination information of the sub-district of the frequency range that Cell Edge User dedicated resources bandwidth is the most left section, remaining bit is 0, wherein, first predetermined resource blocks be the Cell Edge User dedicated resources of this sub-district by the top n Resource Block after the sequence arrangement from small to large, the quantity of the Resource Block that N occupies at interval at the fixed time for the Cell Edge User of this sub-district; The bit corresponding with second predetermined resource blocks is 1 in the interference coordination information of the sub-district of the frequency range of Cell Edge User dedicated resources bandwidth interlude, remaining bit is 0, wherein, second predetermined resource blocks is that the Cell Edge User dedicated resources of this sub-district is by from middle back N Resource Block after the sequence arrangement of both sides; The 3rd section of Cell Edge User dedicated resources bandwidth the interference coordination information of sub-district of frequency range in the bit corresponding with the 3rd predetermined resource blocks be 1, remaining bit is 0, wherein, the 3rd predetermined resource blocks is N the Resource Block of the Cell Edge User dedicated resources of this sub-district by the centre after descending order is arranged.Describe with the example that is produced as of RNTP below in conjunction with Fig. 2.

Fig. 2 is the schematic diagram according to the RNTP bitmap propagation direction of different districts in the RNTP production process in the embodiment of the invention, this figure divides three sections at frequency, the situation that does not have center dedicated frequency band IC, as shown in Figure 2, the part of band background is this Cell Edge User dedicated frequency band OC, and the part two with background can not take resource BC for this Cell Center User.Suppose that three sub-districts are three sectors of base station: sector 1, sector 2 and sector 3.

Then the information bit of first RNTP produces as follows:

Need to prove that above-mentioned formula only meets the sector 1 of edge dedicated resources preassignment in [0, OC] zone; In the sector 2 that is positioned at [OC, 2OC], the RNTP bitmap is that this sub-district OC resource is expanded toward both sides from middle for edge dedicated resources preassignment, and formula and above-mentioned formula are similar, do not repeat them here; And for the sector 3 of edge dedicated resources preassignment at [2OC, 3OC], RNTP information is to expand from big to small.By being set, propagation direction can reduce fragment in the resource allocation as much as possible.

Fig. 3 is the structured flowchart according to the Inter-Cell Interference Coordination information processing device of the embodiment of the invention, this device is positioned at the MAC layer of base station, as shown in Figure 3, this device comprises: resource data statistical module 32, interference coordination information-generation module 34 and interference coordination information sending module 36 are explained below.

The quantity of the Resource Block that resource data statistical module 32, the Cell Edge User that is used for determining the sub-district occupy at interval at the fixed time; Interference coordination information-generation module 34 is connected to resource data statistical module 32, and it is 1 bit that this module is used in the value that the setting of the interference coordination information of this sub-district equates with above-mentioned quantity; And according to the scope of the Cell Edge User dedicated resources of this sub-district and neighbor cell, be 1 bit with the value in the interference coordination information of this sub-district according to predetermined expansion order be arranged on the bandwidth on the frequency staggered mutually; Interference coordination information sending module 36 is connected to interference coordination information-generation module 34, and this module is used for sending interference coordination information to neighbor cell.

Fig. 4 is that as shown in Figure 4, this device also comprises according to the structured flowchart of the Inter-Cell Interference Coordination information processing device of the embodiment of the invention: interference coordination information receiving module 42, this module are used to receive the interference coordination information from described neighbor cell.

Embodiment two

Provide a kind of in the present embodiment and can not rely on the EPRE that physical layer reports, a kind of method and the device that independently produce RNTP information and handle by the MAC layer.Present embodiment combines embodiment one and preferred embodiment thereof.Need to prove that up HII information can adopt identical process to produce equally, be produced as example with RNTP information below and describe, be not repeated in the present embodiment for the generation of HII.

Fig. 5 is that this flow process comprises the steps: according to the flow chart of the RNTP production process of the embodiment of the invention two

Step S501, each TTI of each sub-district adds up the RB number of sub-district inward flange CU, up to reaching predefined measurement period.If do not arrive measurement period, then continue this step, this RB number continues to add up, otherwise, then enter step S502.

Step S502 calculates the RB number that average each TTI in each sub-district is occupied by edge customer in this section timing statistics.

Step S503, the RB number according to average each the TTI edge customer of predefined edge customer sub-district dedicated resources (OC) scope and each sub-district occupies produces RNTP Per PRB (Physical RB) information (being designated hereinafter simply as RNTP information) of this sub-district.

Step S504 compares the RNTP Per PRB information of the RNTP Per PRB information of this generation and last measurement period local area; If the different figure place of twice RNTP Per PRB information is greater than predefined threshold value RNTPDiffThp, then execution in step S505 sends to the adjacent area with this information; Otherwise, then do not send, and the RNTPPer PRB information step-by-step in this cycle is emptied, prepare the statistics that enters next cycle.Preferably, the RNTPDiffThp acquiescence can be 0, and whether expression this cycle RNTP information updating all sends to the adjacent area, can adjust according to actual needs, and the adjusting range maximum is no more than the RB number of actual bandwidth correspondence.

Fig. 6 is that this flow process comprises the steps: according to the flow chart of the RNTP receiving course of the embodiment of the invention two

Step S601, definition RNTP statistics receiving cycle, definition timer;

Step S602, each TTI of each sub-district detects the RNTP information that whether has the adjacent area to send over; If have, receive the RNTP information of adjacent sub-district, and write down adjacent sub-district ID;

Step S603 handles RNTP information that receives and the RNTP information that receives before, for example, and step-by-step summation, weighted sum etc.; Judged whether to reach the receiving and counting cycle of RNTP, if do not reach then continue this step, if reached then enter next procedure;

Step S604, the RNTP obtain according to handling according to the method described above of the RNTP that receives disturbs the RNTP Per PRB information of indication and this sub-district, finishes the resource bitmap and upgrades, and exports to resource distribution module; This local resource position distribution module disturbs indication to carry out resource allocation according to local area RNTPPer PRB information and adjacent area RNTP.

Fig. 7 is the structured flowchart according to the invention process two devices, and as shown in Figure 7, this device comprises: number of resources statistical module, RNTP information-generation module, RNTP information sending module and RNTP information receiving module.This device is positioned at the MAC layer of eNB.

The number of resources statistical module mainly is periodically the occupation condition of each Cell Edge User to be added up, in order to the generation of follow-up RNTP Per PRB information;

The RNTP information-generation module, mainly be to carry out the generation of RNTPPer PRB message bit pattern according to the resource occupation number of number of resources statistical module counts and the scope of predefined edge customer dedicated resources (OC), wherein the OC resource is positioned at the different frequency scope of bandwidth of cell according to the difference of sub-district; RNTP Per PRB message bit pattern represents which position this Cell Edge User will take, and PRB is a positional information, and RNTP is a busy flag, and 1 expression takies, and 0 expression does not take;

The RNTP information sending module, mainly be to carry out by bit comparison according to the new RNTP information that produces and the RNTP information of last measurement period, if different figure places sends thresholding greater than the RNTP that presets, the result who then represents twice statistics has had bigger difference, bigger variation has taken place in the occupation condition of edge UE, then carries out the transmission of this time new RNTP message; Otherwise, illustrate that twice comparative result difference is little, little to the resource allocation influence, in order to save signaling, can take the strategy that does not send.

The RNTP information receiving module mainly is the RNTP information that circulation receives the adjacent area in statistics is accepted the cycle, is not the phenomenon that synchronization arrives local area with the RNTP information of avoiding a plurality of adjacent areas; After measurement period finished, it is for referencial use that the RNTP information after the step-by-step summation is exported to resource distribution module.

By present embodiment, on the one hand, the generation of RNTP can break away from the influence of the EPRE that physical layer reports, breaks away from UE power and reports inaccurate restriction; On the other hand, be assigned to such an extent that the RB strategy that produces RNTP takies what and ratio of resource by edge customer based on CEU, the edge customer resource situation that has not only directly reflected this sub-district on the current area different resource position, can be more accurately and reflect directly adjacent cell edge for whether having on this sub-district part resource location disturbs and the size of interference strength, all very accurate for adjustment and influence that resource location distributes.

Embodiment three

It is as follows that the RNTP that present embodiment provides produces the flow process of handling:

Each descending sub frame record CEU satisfies the required RB quantity of assurance bit rate (Guaranteed BitRate abbreviates GBR as)

Wherein,

k＝sysSFN，sysSFN-1，…，sysSFN-DlRntpRptInterval-1

DlRntpRptInterval is the RNTP report cycle, defaults to UlOIRptInterval (report cycle of upgoing O I) or its integral multiple.Can reduce the mutual of Load Indication like this.If do not have CEU to be scheduled in the k subframe, then

Be the RB number that GBR distributed that satisfies edge UE (CEU) in the statistics one-period

For, this cycle acquiescence is got 100 TTI: Promptly added up at the RB number that measurement period inward flange UE takies in each sub-district, calculate the required average RB number of GBR that each TTI satisfies edge UE then

${\stackrel{\‾}{N}}_{\mathrm{CEU},\mathrm{TTI}}^{\mathrm{GBR}}=\frac{N_{\mathrm{CEU}}^{\mathrm{GBR}}}{n_{\mathrm{DlTtiInDlRntpRptInterval}}}$

Wherein, n _{DlTtiInDlRntpRptInterval}Be the descending sub frame number in the RNTP report cycle.The information bit of RNTP produces as follows:

Wherein the explanation of this formula only meets the sector 1 of edge dedicated resources preassignment in [0, OC] zone; In the sector 2 that is positioned at [OC, 2OC], the RNTP bitmap is that this sub-district OC resource is expanded toward both sides from middle for edge dedicated resources preassignment; And for the sector 3 of edge dedicated resources preassignment at [2OC, 3OC], RNTP information is to expand from big to small.The purpose that propagation direction is set is the fragment that reduces as much as possible in the resource allocation.

RNTP _NewAnd RNTP _OldCompare, if

numOfBits(RNTP _newxor?RNTP _old)＞RNTPDiffThreshold，

RNTP then _NewFor finally sending to the RNTP of adjacent area.RNTPDiffThreshold is a threshold value of preset value, and the purpose that this parameter is set is, if RNTP is not having very big change during the reporting period twice then can reduce the transmission of RNTP; This parameter default is 0, all sends the RNTP information of this generation to the adjacent area in any case represent twice comparative result.This parameter can be adjusted as required, and maximum is no more than the RB number of downlink bandwidth.

Make RNTP _Old=RNTP is used for next time relatively.The reception Processing Algorithm of RNTP is used for analyzing the RNTP information of the neighbor cell that this sub-district receives.

It is as follows that RNTP receives the flow process of handling:

Define a RNTP and handle period T _Rntp, because different neighbor cells not necessarily sends RNTP simultaneously.Be defaulted as 10 TTI, can adjust as required; Maximum is no more than 20 TTI; The life cycle timer triggers the following handling process of RNTP.

Each TTI reads and writes down the RNTP information that the adjacent area sends.Do not handle period T if arrive RNTP _Rntp, then continue to read the RNTP information of adjacent area.

The RNTP that receives is carried out the RNTP indication usefulness that step-by-step " summation " operation obtains

Expression, that is:

${\mathrm{RNTP}}_{\mathrm{Nb}}^{\mathrm{sum}}=\underset{\mathrm{cellId}\∈\left\{{\mathrm{cellId}}_{\mathrm{Nb}}\right\}}{\mathrm{\Σ}}{\mathrm{RNTP}}^{\mathrm{cellId}},$

Wherein, RNTP ^CellIdBe dealt into the RNTP of this sub-district for neighbor cell (cellId).{ cellId _NbIt is the set of neighbor cell cellId; Here Qiu He method just illustrates how the adjacent area RNTP information that receives is operated, and is not unique processing method.

Finish the statistical disposition of this RNTP information, carry out the renewal of resource bitmap.

Because the difference that the interference coordination Mid Frequency is divided, the generation of RNTP extremely propagation direction can be distinguished to some extent.For detailed as far as possible elaboration present embodiment, be described further below by embodiment four and embodiment five.

Embodiment four

Consider that pre-assigned frequency range divides three sections, and the situation that produces and handle at descending RNTP information, as shown in Figure 2, this figure divides three sections at frequency, the situation that does not have center dedicated frequency band IC, as shown in Figure 2, the part of band background is this Cell Edge User dedicated frequency band OC, and the part two with background can not take resource BC for this Cell Center User.

Under the situation of above-mentioned preassignment frequency band, consider that an edge customer number is few, cell load is lighter, and GBR is less demanding, and it is less that edge customer takies resource, can not surpass the simple scenario of edge customer dedicated resources scope OC.Under this scene, the flow process of RNTP generation and entire process is as follows:

The required RB quantity of GBR is satisfied each descending sub frame recording cell inward flange user in each sub-district; If do not satisfy measurement period, then continue to add up and the RB number is sued for peace; If reached measurement period, then obtain the RB number that each sub-district on average is assigned to the edge UE of each TTI, and satisfy situation according to the average GBR of this cell edge UE this RB number is adjusted, establishing this RB number that obtains at last is Nrb, the Nrb value of oneself is safeguarded in each sector.

Under the little situation of edge customer RB demand,, on different frequency bands, carry out the generation of RNTP message bit pattern at three sectors of a base station: first sector, in [0, OC] bandwidth from left to right Nrb position 1; If also remaining OC-Nrb position then puts 0 with it.Equally, for second sector, in [OC, 2OC] bandwidth, respectively expand the Nrb/2 position toward both sides, the position 1 that expands to from middle (OC*3/2); If remaining bit arranged then be changed to 0.Equally,, in [2OC, 3OC] bandwidth, expand the Nrb position from right to left for the 3rd sector, the position 1 that expands to, otherwise put 0.

Under current scene, each sub-district just can be satisfied the demand of edge customer substantially in the edge customer dedicated resources scope OC of oneself, so consider in the time of resource allocation the edge is distributed in these positions, the center is distributed in all the other positions, on frequency, stagger mutually between the cell edge, thereby reached the purpose of interference coordination.

Embodiment five

Fig. 8 is that this figure divides four sections at frequency, and the situation of center dedicated frequency band IC is arranged according to the schematic diagram of the RNTP bitmap propagation direction of different districts in the RNTP production process of the embodiment of the invention five.Wherein, consider that pre-assigned frequency range divides four sections, and transmission information is the situation of up HII, and the part of band twill background is this Cell Edge User dedicated frequency band OC, and the part of band horizontal line background can take the resource that can use with this Cell Edge User for this Cell Center User; If the OC dedicated frequency band can satisfy the demand of edge customer, then IC part resource is all distributed to the use of this Cell Center User; BC is the Cell Center User special use.

Under the situation of above-mentioned preassignment frequency band, consider that an edge customer number is more, cell load is bigger, and GBR requires than higher, and it is many that edge customer takies resource, even can surpass the complex scene of preallocated edge customer dedicated resources scope OC.Under this scene, the flow process of HII generation and entire process is as follows:

The required RB quantity of GBR is satisfied each descending sub frame recording cell inward flange user in each sub-district; If do not satisfy measurement period, then continue to add up and the RB number is sued for peace; If reached measurement period, then enter next step;

Obtain the RB number that each sub-district on average is assigned to the edge UE of each TTI, and satisfy situation according to the average GBR of this cell edge UE this RB number is adjusted, if this RB number that obtains at last is Nrb, the Nrb value of oneself is safeguarded in each sector, enters next step;

Under edge customer RB demand situation relatively, three sectors at a base station, on different frequency bands, carry out the generation of HII message bit pattern: first sector, [0, OC] in the bandwidth from left to right Nrb position 1, under this kind scene, Nrb may expand the scope that breaks through OC to the right, enter in the dedicated resources scope of second sector the dedicated resources scope that extreme case may enter the 3rd sector down.Equally, for second sector, in [OC, 2OC] bandwidth, respectively expand the Nrb/2 position toward both sides, the position 1 that expands to from middle (OC*3/2); It may break through the restriction of [OC, 2OC], the edge customer dedicated resources scope that enters first sector and the 3rd sector respectively separately to both sides.Equally,, in [2OC, 3OC] bandwidth, expand the Nrb position from right to left for the 3rd sector, the position 1 that expands to, otherwise put 0; Equally, put the edge customer dedicated resources scope that 1 figure place may expand to second and first sector equally.

In this case, scheduling strategy will be complicated a little; When edge customer is given in Resources allocation in each sub-district, need with reference to two information: first, the HII message bit pattern indication of this sub-district, be designated as 1 figure place and represent the resource location that this sub-district will take, the adjacent area should be avoided edge customer is distributed in this position when receiving this HII message bit pattern of local area; Second, handling of the adjacent area HII information that this sub-district is received, such as addition without carry and, the stack of the HII information that this information representation adjacent area sends on the corresponding resource location of local area, stack and big more, show that the edge, adjacent area is big more for this locational influence, just will avoid edge customer is distributed in these positions more when local area carries out resource allocation.

Under current scene, the demand of edge customer can not have been satisfied in each sub-district in the edge customer dedicated resources scope OC of oneself, has the overlapping region of part between the dedicated resources of each sub-district, and interference certainly exists; At this moment, resource allocation need be staggered interfere with each other bigger place between the cell edge on frequency according to disturbing indication principle from small to large to seek resource allocation as far as possible, thereby has reached the purpose of Interference Control.

In sum, owing to the RNTP and the HII information that produce in the above embodiment of the present invention can exert an influence to the strategy that resource allocation is carried out according to presence of intercell interference in the sub-district, thereby the coordination and the resource that can reach presence of intercell interference are reasonably distributed.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. an Inter-Cell Interference Coordination information processing method is characterized in that, comprising:

Determine the quantity of the Resource Block that the Cell Edge User in the sub-district occupies at interval at the fixed time;

The value of the bit that equates with described quantity in the interference coordination information of described sub-district is set to 1;

According to the scope of the Cell Edge User dedicated resources of described sub-district, be that 1 bit is arranged on bandwidth according to predetermined expansion order with described bit value;

Described sub-district sends described interference coordination information to described neighbor cell.

2. method according to claim 1 is characterized in that, determines that the quantity of the Resource Block that the Cell Edge User in the described sub-district occupies in described predetermined time interval comprises:

The described Cell Edge User of statistics is at the sum of the Resource Block that occupies in certain time length;

Use described sum to calculate the quantity of the Resource Block that described Cell Edge User on average occupies at interval at the fixed time.

3. method according to claim 1 and 2 is characterized in that, described predetermined time interval is a Transmission Time Interval.

4. method according to claim 1 is characterized in that, described sub-district sends described interference coordination information to described neighbor cell and comprises:

Corresponding bit in described interference coordination information and the last interference coordination information that obtains is compared successively;

If the quantity of the bit that the value in two bit diagram is inequality surpasses threshold value, then send described interference coordination information to described neighbor cell.

5. according to claim 1 or 4 described methods, it is characterized in that, also comprise:

Described sub-district is according to the interference coordination information of this sub-district and carry out the distribution of resource from the interference coordination information of described neighbor cell.

6. method according to claim 5 is characterized in that, the interference coordination information that the described neighbor cell that described sub-district statistics receives in the section at the fixed time sends obtains described interference coordination information from described neighbor cell.

7. method according to claim 6 is characterized in that, the interference coordination information that the described neighbor cell that described sub-district statistics receives in the section at the fixed time sends comprises:

Carry out suing for peace or weighted sum by bit to the interference coordination information of the described neighbor cell that receives in the described predetermined amount of time in described sub-district.

8. method according to claim 1 is characterized in that, according to the scope of the Cell Edge User dedicated resources of described sub-district, is that 1 bit carries out arrange packets according to predetermined expansion order and draws together with described bit value on bandwidth:

Described sub-district takies different frequency ranges with the Cell Edge User dedicated resources of other two neighbor cells that are in same base station;

The bit corresponding with first predetermined resource blocks is 1 in the interference coordination information of the sub-district of the frequency range that Cell Edge User dedicated resources occupied bandwidth is the most left section, remaining bit is 0, wherein, the Cell Edge User dedicated resources that described first predetermined resource blocks is this sub-district is by the top n Resource Block after the sequence arrangement from small to large, the quantity of the Resource Block that N occupies at interval at the fixed time for the Cell Edge User of this sub-district;

The bit corresponding with described second predetermined resource blocks is 1 in the interference coordination information of the sub-district of the frequency range of Cell Edge User dedicated resources occupied bandwidth interlude, remaining bit is 0, wherein, described second predetermined resource blocks Cell Edge User dedicated resources that is this sub-district is by from middle back N Resource Block after the sequence arrangement of both sides;

The bit corresponding with described the 3rd predetermined resource blocks is 1 in the interference coordination information of the sub-district of the frequency range that Cell Edge User dedicated resources occupied bandwidth is the 3rd section, remaining bit is 0, wherein, described the 3rd predetermined resource blocks Cell Edge User dedicated resources that is this sub-district is by N Resource Block of the centre after descending order is arranged.

9. an Inter-Cell Interference Coordination information processing device is characterized in that, is positioned at the MAC layer of base station, comprising:

The quantity of the Resource Block that resource data statistical module, the Cell Edge User that is used for determining the sub-district occupy at interval at the fixed time;

The interference coordination information-generation module; The value that is used for the bit that the interference coordination information of described sub-district equates with described quantity is set to 1; And, be that 1 bit is arranged on bandwidth according to predetermined expansion order with the value in the interference coordination information of described sub-district according to the scope of the Cell Edge User dedicated resources of the neighbor cell of described sub-district and described sub-district;

The interference coordination information sending module is used for sending described interference coordination information to described neighbor cell.

10. device according to claim 9 is characterized in that, also comprises:

The interference coordination information receiving module is used to receive the interference coordination information from described neighbor cell.

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